Show respect and gratitude to all those who have served in the military and those that continue to serve with the new 2018 Memorial Day On-Field MLB Hats from New Era. This section contains official MLB 2018 Memorial Day on-field hats worn by professional baseball players on memorial day. As part of the holiday, the MLB has pledged all royalty revenue from 2018 Memorial Day On-Field items to go towards benefitting active-duty military, veterans, and their respective families. Say thank you to our military while also showing love for your favorite MLB team with a 2018 Memorial Day On-field fitted cap, a 2018 Memorial Day On-Field snapback hat, a 2018 Memorial Day On-Field dad hat or a 2018 Memorial Day On-Field stretch fit cap. Show your gratitude today with the 2018 Memorial Day On-Field collection from New Era and the MLB.